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PO Box 1928 API 653 SIMILAR SERVICE <br /> POWERS <br /> BECA 94510 <br /> TELL 707 707 334 3400 KIRK PETROLEUM TRACY,CA <br /> FAX 707 926 2684 <br /> ENGINEERING&INSPECTION,INC www.powersel.com Tank 2 (Candidate Tank) <br /> SIMILAR SERVICE ASSESSMENT-DATASHEET-SHELL EXTERNAL <br /> CONTROLTANK ID: Tank LOCATION: TRACY,CA <br /> DIAMETER(FT): 24 HEIGHT(FT): 24 CAPACITY(BBLS): 1,934 <br /> CANDIDATE TANK ID: Tank LOCATION: TRACY,CA <br /> DIAMETER(FT): 24 HEIGHT(FT): 24 CAPACITY(BBLS): 1,934 <br /> SECTION 4-TANK SHELL(EXTERNAL-SIDE)ASSESSMENT <br /> HAA TANK CHARACTERISTICS MATCH(3) IF NO SEE <br /> CONTROLTANK(1) CANDIDATETANK(2) YES NO SEC.(4) <br /> a) YEAR TANK ERECTED 1991 1991r❑ ❑ H.2.1.1 <br /> b) SHELL MATERIAL A36 A36 0 ❑ H.2.1.3 <br /> c) CORROSION ALLOWANCE 0 0r❑ ❑ H.2.1.4 <br /> d) SHELL UNINGTYPE N/A N/A r❑ ❑ H.2.1.4 <br /> e) SHELL UNINGTHICKNESS N/A N/A ❑ ❑ H.2.1.4 <br /> f) SHELL LINING AGE N/A N/A y❑ ❑ H.2.1.4 <br /> g) COATING TYPE EPDXY EPDXY r❑ ❑ H.2.1.4 <br /> h) COATING THICKNESS N/A N/A r❑ ❑ H.2.1.4 <br /> i) COATINGAGE 10 10 v❑ ❑ H.2.1.4 <br /> H.4.2 AMBIENT CONDITIONS MATCH(3) IF NO SEE <br /> CONTROLTANK(1) CANDIDATETANK(2) YES NO SEC.(4) <br /> a) LOW ONE DAY MEAN TEMP. 22 DEG F APPROX 22 DEG F APPROX Q ❑ H.2.1.9 <br /> b) EXPOSURE TO SALT AIR NO NO v❑ ❑ H.2.1.9 <br /> H.4.3 CURRENT OPERATING CONDITIONS MATCH(3) IF NO SEE <br /> CONTROLTANK(1) CANDIDATETANK(2) YES NO SEC.(4) <br /> a) PONDING/WATER SAMESERVICE SAME SERVICE y❑ ❑ H.2.1.10 <br /> b) NORMAL OPERATING TEMP. AMBIENT AMBIENT r❑ ❑ H.2.1.10 <br /> HAA PREVIOUS OPERATING CONDITIONS MATCH(3) IF NO SEE <br /> CONTROLTANK(1) CANDIDATETANK(2) YES NO SEC.(4) <br /> a) PONDING/WATER SAMESERVICE SAME SERVICE 0 ❑ H.2.1.10 <br /> b) NORMAL OPERATING TEMP. SAME SERVICE SAME SERVICE v❑ ❑ H.2.1.10 <br /> H.4.5 CONCLUSIONS <br /> a) Does this assessment inculde additional assessment documentation(see H.2.1) ❑YES ❑r NO <br /> b) Based on the criteria reviewed in this similar service evaluation,similar service <br /> is❑�OR is NOT ❑ecommended for this tank(check appropriate box) <br /> c) The corrosion rate to be applied to the external side of the tank shell is: 0.0003 in/yr mpy. <br /> COMMENTS: <br /> NOTE THE DATASHEET SHALL BE MAINTAINED IN THE RECORD FILE AS PER 6.8 <br /> ASSESSED BY: Jade C.Geronimo/Gary Powers DATE: 6/3/2019 <br /> APPROVED BY: DATE: <br /> (tank owner/operator) <br /> NOTE(1)The control tank is the tank for which service conditions and corrosion rates are well known. <br /> NOTE(2)The candidate tank is the tank to be compared to the control tank to determine if similar service concepts apply. <br /> NOTE(3)"Y"or"yes"indicates that the candidate tank criterion essentially matches the control tank. <br /> NOTE(4)If the candidate tank criterion does not match the control tank criterion,see H.2.1. <br /> API 653 SIMILAR SERVICE YELLOW FREIGHT TANK 2 TRACY,CA 2019.DOCX Page 20 of 21 Date Printed:614119 9:53 AM <br /> ©2017 PE&I Inc. <br />